coastline
noun
coast·line
ˈkōs(t)-ˌlīn 
1
: a line that forms the boundary between the land and the ocean or a lake
2
: the outline of a coast
Examples of coastline in a Sentence
The plane flew along the eastern coastline.
Recent Examples on the Web
Think of the eastern edge of South America or the coastline around the United Kingdom; these aren’t places with active volcanoes, large earthquakes or other major planetary activity.
—
Alexandra Witze, JSTOR Daily, 24 Apr. 2025
Such high temperatures are deadly to corals, which protect coastlines from erosion and storms.
—Jade Walker, CNN Money, 24 Apr. 2025
The Bahamas consists of more than 700 islands, with some only 50 miles from Florida's coastline.
—Sarah Rumpf-Whitten, FOXNews.com, 22 Apr. 2025
Monterey and Carmel-by-the-Sea This duo offers a mix of rugged coastline and refined charm.
—Amplified Content Studio, Mercury News, 22 Apr. 2025
See All Example Sentences for coastline
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Alexandra Witze, JSTOR Daily, 24 Apr. 2025
Such high temperatures are deadly to corals, which protect coastlines from erosion and storms.
—Jade Walker, CNN Money, 24 Apr. 2025
The Bahamas consists of more than 700 islands, with some only 50 miles from Florida's coastline.
—Sarah Rumpf-Whitten, FOXNews.com, 22 Apr. 2025
Monterey and Carmel-by-the-Sea This duo offers a mix of rugged coastline and refined charm.
—Amplified Content Studio, Mercury News, 22 Apr. 2025
See All Example Sentences for coastline
Cite this Entry
“Coastline.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/coastline. Accessed 1 May. 2025.
Copy CitationKids Definition
coastline
noun
coast·line
ˈkōst-ˌlīn
: the outline or shape of a coast
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